Why is it that the second amendment is the only part of the Bill of Rights that hasn't been badly weakened? People should be far more scared of things like loss of habeas corpus, corporate control of media, extrajudicial executions, unrestrained PAC donations and government snooping than a nonexistent threat to take their hunting rifles away.

Oh, that'll come with Obamacare: "As the Secretary shall determine...". Government doesn't need the benefit of tragedy to exact tyrany. They've already got the mechanism in the form of our new 2400+ page "constitution". So if anything needs to be outlawed...

He did not "print" a gun. He printed the lower receiver. It's nothing more than a hunk of polymer without the upper receiver, which is the part that he had to purchase from a licensed firearms dealer.
Let's not feed the FUD.